Year	current US$
1967	400000.00596046395
1968	589999.973773956
1970	720000.028610229
1971	1600000.02384186
1972	2349999.90463257
1973	4300000.19073486
1974	9300000.19073486
1975	10210000.038146999
1976	5579999.92370605
1977	7269999.98092651
1978	12819999.6948242
1979	29120000.8392334
1980	34299999.237060495
1981	18489999.7711182
1982	18430000.3051758
1983	21069999.6948242
1984	29360000.6103516
1985	15170000.076293899
1986	18239999.7711182
1987	31459999.084472697
1988	22469999.3133545
1989	23469999.3133545
1990	29969999.3133545
1991	10970000.2670288
1992	35700000.762939505
1993	27639999.3896484
1994	25809999.4659424
1995	29010000.2288818
1996	31450000.762939498
1997	29780000.6866455
1998	36540000.9155273
1999	12439999.5803833
2000	9199999.80926514
2001	24520000.4577637
2002	12859999.6566772
2003	15680000.3051758
2004	18100000.3814697
2005	13489999.7711182
2006	-319999.99284744303
2007	-90000.0035762787
2008	-1370000.00476837
2009	280000.001192093
2010	319999.99284744303
2011	990000.009536743
2012	-340000.00357627904
2013	-579999.983310699
2014	-730000.019073486
2015	-610000.014305115
2016	-610000.014305115
2017	-589999.973773956
2018	-259999.990463257
2019	-170000.00178813902
2020	-230000.004172325
2021	-239999.994635582
2022	-180000.00715255702